package edu.sctu.zhangwang.month201506.day20150616;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.URL;
import java.net.URLConnection;

/**
 * Created by user10 on 2015/6/16.
 */
public class HttpPost {
    public static String sendPost(String url, String param) {
        PrintWriter out = null;
        BufferedReader in = null;
        String result = " ";
        try {
            URL realUrl = new URL(url);
            // 打开和URL之间的连接
            URLConnection conn = realUrl.openConnection();
            // 设置通用的请求属性
//            conn.setRequestProperty("accept", "*/*");
//            conn.setRequestProperty("connection", "Keep-Alive");
//            conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
            // 发送POST请求必须设置如下两行
            conn.setDoOutput(true);
            conn.setDoInput(true);
            // 获取URLConnection对象对应的输出流
            out = new PrintWriter(conn.getOutputStream());
            // 发送请求参数
            out.print(param);
            // flush输出流的缓冲
            out.flush();
            // 定义BufferedReader输入流来读取URL的响应
            in = new BufferedReader(new InputStreamReader(conn.getInputStream()));
            String line;
            while ((line = in.readLine()) != null) {
                result += line;
            }
            System.out.println(result);
            System.out.println();
        } catch (Exception e) {
            System.out.println("发送 POST 请求出现异常！" + e);
            e.printStackTrace();
        }
        // 使用finally块来关闭输出流、输入流
        finally {
            try {
                if (out != null) {
                    out.close();
                }
                if (in != null) {
                    in.close();
                }
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return result;
    }

    public static void main(String[] args) {
        HttpPost httpPost = new HttpPost();
        sendPost("http://www.baidu.com","/s?ie=utf-8&f=8&rsv_bp=0&rsv_idx=1&tn=baidu&wd=军事&rsv_pq=fc781f7700011442&rsv_t=258dxp9qw8VUNoWVzTeuxgW6oD5eiHFMtxqcILX2nxduyB7AarZQrgbn0ns&rsv_enter=1&rsv_sug3=6&rsv_sug1=3");
//        sendPost("http://tysf.shic.edu.cn:8071/sso/login","?service=http%3A%2F%2Fxxmh.shic.edu.cn%2Fweb%2Fguest");
    }
}
